High-precision micro-weighing feeding conveying system

Abstract

The invention relates to a high-precision micro-weighing feeding conveying system. The high-precision micro-weighing feeding conveying system comprises a large hopper, a pneumatic metering valve and asmall hopper, wherein the pneumatic metering valve is fixedly mounted at the bottom end of the large hopper; the pneumatic metering valve is connected with the small hopper; an anti-bridging stirringbox is fixedly mounted at the bottom end of the small hopper; the lower end of the anti-bridging stirring box is fixedly connected with the upper end of a weighing sensor; the weighing sensor is fixedly mounted on a rack; the bottom and the top of an inner cavity of the anti-bridging stirring box are rotatably connected with a feeding screw rod and a material ramming impeller respectively; the left end of the anti-bridging stirring box is fixedly connected with a gear box; the gear box is connected with a servo motor through a planetary speed reducer; an output shaft of the gear box is connected with the feeding screw rod and the material ramming impeller respectively through a bearing sealing assembly; the right end of the feeding screw rod is connected with a discharging hole; and the bottom end of the discharging hole is connected with the upper end of a Venturi ejector. According to the high-precision micro-weighing feeding conveying system, the adhesion and bonding of materials in a pipeline can be prevented, and the problems that a traditional conveying system is easy to bridge and block and the materials cannot be quantitatively conveyed into the pipeline with back pressureare solved.

Description

[technical field] [0001] The invention relates to the technical field of material conveying, in particular to a high-precision micro-weighing feeding conveying system. [Background technique] [0002] Weighing scale is an automatic weighing equipment that realizes high-precision continuous quantitative feeding through static weighing. It can reliably, accurately and stably feed powder, granules, flakes and other dry bulk materials, reducing material waste and improve the consistency of the mixture. Weight reduction scales are widely used in the field of automatic batching production. Venturi feeder is the simplest feeding device in the pneumatic conveying system, because of its compact structure, less space, relatively cheap price, high speed of solid material conveying, good continuity, etc., it is widely used in various in a delivery system. In addition, after the polymer is polymerized and granulated, as well as in other plastic processing industries, the temperature of...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the above-mentioned deficiencies and provide a high-precision micro-weighing feeding conveying system, which can prevent the materials in the pipeline from adhering and bonding together, and solves the problem that the traditional conveying system is easy to bridge and block, and cannot The problem of quantitatively conveying materials into pipelines with back pressure

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